Combat Effectiveness Boosted Fivefold! New "Smart" Immune Cells Precisely Target and Eliminate Cancer Cells
Release time:
2025-04-18
Imagine if immune cells in the human body could transform into "smart missiles," relentlessly tracking and destroying cancer cells without harming healthy tissue—this would revolutionize cancer treatment. A groundbreaking announcement from the USC Viterbi School of Engineering reveals the arrival of "EchoBack CAR T cells", a new breed of "thinking" immune warriors propelling targeted cancer therapy into a 2.0 era!
From "Blitzkrieg" to "Prolonged Warfare": Immune Cells Upgrade Combat Tactics
While traditional CAR T-cell therapies have shown success against blood cancers, their activity often fades within 24 hours. In contrast, USC’s EchoBack cells are "endurance champions": a single ultrasound activation keeps them battle-ready for five days, continuously releasing anti-cancer munitions.
"With first-generation cells, patients might need daily hospital visits. But the new cells could reduce treatment frequency to biweekly sessions, or even less," explains Longwei Liu, Assistant Professor at USC Viterbi.
In prostate cancer and glioblastoma mouse models, two rounds of ultrasound stimulation boosted tumor clearance efficiency by 300% compared to conventional therapies. Remarkably, as cancer cells counterattack, these "smart hunters" grow fiercer, producing more lethal molecules.
Precision Navigation + Self-Destruct Protocol: Dual Safeguards for Safety
The breakthrough lies in an "ultrasound switch" design:
Targeted Activation: A 10-minute, non-invasive ultrasound pulse pinpoints tumor regions, acting like GPS for CAR T cells.
Intelligent Recognition: Activated cells deploy "molecular probes" to track cancer cells like heat-seeking missiles.
Safe Self-Destruction: Anti-cancer receptors degrade automatically post-mission, preventing collateral damage.
"This is a true breakthrough," adds Yingxiao Wang, Chair of USC’s Alfred E. Mann Department of Biomedical Engineering. "It paves the way for ultrasound-controlled CAR T therapies to become clinically viable."
From Lab to Clinic: A New Era in Cancer Treatment
The technology has shown promise across multiple solid tumor models. The team is advancing clinical trials and aims to adapt this modular platform for other cancers, such as breast cancer and retinoblastoma.
Published in Cell, this study not only redefines CAR T therapy but also expands the boundaries of precision medicine. If successfully translated, this "perpetual-motion-like" smart immunotherapy could slash treatment frequency and side effects, offering hope for advanced solid tumor patients. As the researchers declare: "This isn’t just an upgrade—it’s a complete paradigm shift in cancer treatment."
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